Software issues. Printer doesn’t start properly

Hey guys. After having the printer switched off for about 2 weeks, I have major issues with the printer. I started a print in copy mode and firstly it all went ok. Then I noticed that the CPU was close to 100% and the print failed due to timer too close. Then I switched the printer off and started again. I realised that the display did weird things. It seems like something is broken but I don’t know what to do. Do you have any advice?
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